Lock.



R. ADAMS.

LOCK.

APPLICATION FILED 17130.2, 1904. RENEWED SEPT. s, 1909.

Patented June 21, 1910.

2 8HEET8-SHEET 1.

F702. (fill I \J r 4 I y g dig 2 12 o 6 a J w .40 M

ANDREW B. GRAHAM c0. FROTO-UINOGRAPHERS. WASHINEYON. D. c.

R. ADAMS.

LOOK.

APPLICATION FILED no.2, 1904. RENEWED SEPT. a, 1909.

961 996. Patented June 21,1910.

2 SHEETS-SHEET 2.

0erf Wda772 ROBERT ADAMS, OF LONDON, ENGLAND.

LOCK.

Application filed December 2, 190-4, Serial No. 285,208.

To all whom it may concern:

Be it known that 1, ROBERT ADAMs, subject of the King of Great Britain,residing at 3 and 5 Emerald street, Theobalds Road, London, England,have invented certain new and useful Improvements in Locks, of which thefollowing is a specification.

The object of my invention is to effect improvements in locks for desks,show cases, window sashes, French windows, bags, portmanteaux, and thelike, my invention being hereinafter described with reference to theaccompanying drawings.

Figure 1 is a plan of a spring lock of the sliding type (with top plateremoved), Fig. 2 is a section on the line 00-50 of Fig. 1, and Fig. 3 isa section on the line y y of Fig. 1. Fig. 4: is an elevation of a springlock of the pivoted type, Fig. 5 is a similar view of a modification ofFig. 4:, Fig. 6 is a perspective view of the retractor plate; and Fig. 7is a top plan view thereof.

Referring to Figs. 1, 2 and 3, a is a case which may be arranged to besunk within the woodwork or substance of the article to which the lockis fitted; 7) is the top plate and c is the striker catch plate. In thecase a a sliding bolt (Z is fitted, being driven home by a spring 6 sothat the claws 0? may engage with the catches of the striker plate in amanner well known. The bolt d is drawn back by means of a retractor suchas the slotted frame or slider g which engages the rear claw by lugs g,the claw being cut away as shown to accommodate the slider. The rear endof the slider is formed with lugs g which travel on the case a, and thesides are formed with flanges 9 the upper edges of which are level withthe top of the case. The slot d in the slider permits of the bolt (Zbeing driven back by the impact of the striker catches. The slider g isalso formed with a plurality of slots h which act in combination withsuitable flexible or spring controlled tumblers, levers, or the likewhich are released by the turning of a key. In the drawings (Figs. 1, 2and 3) these consist of a number of spring metal strips 72/ which aresecured to a cross-piece 7L2 fixed in the case, said strips it normallyengaging with the end walls of the slots kas shown in Fig. 3. One of thestrips (h) may be fashioned, as shown in Fig. 2, to limit the forwardmotion of the slider by impinging against the projection g on theSpecification of Letters Patent.

Patented J une 21, 1910.

Renewed September 3, 1909. Serial No. 516,123.

slider. The slider is retracted by a key, the bit of which engages theend or ends of one or more of the slots after raising the strips h ortheir equivalent.

It will be apparent that the key operates the retractor by theengagement of the bit of said key with the end or ends of one or more ofthe slots in the said retractor or slider g, and when entering the slotsthe said key contacts with the metal strips h causing the same to bemoved from engagement with the retractor or slide 9, freeing the latterso movement can be imparted thereto.

Figs. 4 and 5 illustrate the application of the retractor or slider G toa bolt 7; pivoted in the case at i. In Fig. 4:, the end of the slider isslotted at i to engage a stud i or its equivalent fixed to the bolt zand so as to allow the bolt to be thrust inward (by contact with asuitable striking plate) against the force of the spring E, in a similarmanner to that already described with reference to Figs. 1, 2 and 3. Theslider is adapted to slide within the narrowed part a of the case a, aslot 9 being formed in the strengthening web or flange G of the sliderto admit of its motion when the key is in position. Flexible strips 72.or their equivalent are employed to lock the slider as before described.Fig. 5 shows the slider Gr arranged to retract the bolt 2' against aspring 6 by means of an arm 70 fitted with a projection or stud k fixedto or integral with said bolt. The end of the slider G is formed as afork g to engage the stud 70 and flexible strips h or their equivalentare employed to lock the slider as before described.

I claim 1. A lock comprising a case, a spring actuated bolt, a retractoroperative upon the latter, and a resilient lock member normally inengagement with the retractor to hold the same against movement.

2. A look comprising a case, a spring controlled bolt, a slottedretractor in engagement with said bolt, a plurality of spring metalstrips engaging the end walls of the slot and said retractor, and meansfor disengaging said strips from the retractor and operating saidretractor to draw back the bolt.

3. A look comprising a case, a spring controlled bolt within the latter,a slotted retractor engaging said bolt, resilient means in engagement inthe slot in the retractor said slot to hold the said retractor against-10 movement, and means movable through the slot for displacing theyieldablemeans to free the retractor for actuating the bolt.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

ROBERT ADAMS.

Witnesses GEORGE O. DOWNING, WALTER J. SKERTEN.

